Mechanical Engineering - Strength of Materials - Discussion
Discussion Forum : Strength of Materials - Section 1 (Q.No. 36)
36.
In order to know whether a column is long or short, we must know its slenderness ratio.
Discussion:
13 comments Page 2 of 2.
BASAR said:
6 years ago
S.R <32 IS SHORT COLUMN.
S.R IN BETWEEN 32-120 IS MEDIUM COLUMN.
S.R > 120 IS LONG COLUMN.
S.R IN BETWEEN 32-120 IS MEDIUM COLUMN.
S.R > 120 IS LONG COLUMN.
Mani said:
5 years ago
By looking or measuring, I guess we can understand it is long or short. Am I right?
Pushpak said:
4 years ago
@All.
Depending upon slenderness ration column may be classified as a short column or long column.
IS: 456-2000 classifies a rectangular compression member as short when both the slenderness ratios (Lex/D) and (Ley/b) are less than 12. Where Lex = Effective length in respect of major axis Ley = Effective length in respect of minor axis D = Depth in respect of major axis b = width of member If any of these ratios is equal to more than 12, then it is termed as a slender or long column.
This definition is not suitable for non-rectangular and non-circular sections where the slenderness ratio is better defined in terms of the radius of gyration than the lateral dimensions.
Important Points For steel columns:
SR < 32 : Short column.
SR 32 - 120: Medium column.
SR > 120: Long Column.
Depending upon slenderness ration column may be classified as a short column or long column.
IS: 456-2000 classifies a rectangular compression member as short when both the slenderness ratios (Lex/D) and (Ley/b) are less than 12. Where Lex = Effective length in respect of major axis Ley = Effective length in respect of minor axis D = Depth in respect of major axis b = width of member If any of these ratios is equal to more than 12, then it is termed as a slender or long column.
This definition is not suitable for non-rectangular and non-circular sections where the slenderness ratio is better defined in terms of the radius of gyration than the lateral dimensions.
Important Points For steel columns:
SR < 32 : Short column.
SR 32 - 120: Medium column.
SR > 120: Long Column.
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